legally it has to be free unless they want to have a legal battle to making money off a copyrighted product. Fan Fictions and Mods under the Fair Use Act do have their limits due to the copyright laws. So if they want to make money off this, they need to ask Lucas Arts and Bioware if they using the Kotor 1 game to do this. If they are using the Kotor 2, they need to make a deal with Lucas Arts and Obisdan for this, if they want to make their own product and sell it.